On-line detection system and method for LED (light emitting diode) light guide light distribution quality of automobile daytime running lamp

Abstract

The invention relates to an on-line detection system and method for LED (light emitting diode) light guide light distribution quality of an automobile daytime running lamp. A discharge station, a test station and a taking station are sequentially connected from front to rear, a tray tool is moved to a set station under the control of a computer to be fixed, the test station is a closed light-tight box, an LED light source module is located on the front end surface of a light pipe by a front locating cylinder in the test station, and the light emitted by the LED light source is coupled to the front end surface of the light pipe and is transmitted to the terminal surface along the light pipe; and at the same time, a light path terminal module is located at the terminal surface of the light pipe by a rear locating cylinder, light is reflected to the light pipe, a picture sensor above the tray tool collects data and transmits to the computer, and the computer comprehensively measures and judges the light distribution quality of the LED light guide from light intensity, illuminance homogeneity and colorimetric parameters, so that on-line detection is objectively, effectively and rapidly realized, and the work efficiency of the system is improved. The system has higher intellectualization and reliability, and the working continuity and stability of the system are improved.

Description

technical field [0001] The invention relates to an on-line detection system and method for LED light guide light distribution quality of automobile daytime running lights. Background technique [0002] The rapid development of the automobile industry has put forward higher and higher requirements for automotive lighting. The quality of automotive lighting is crucial to driving safety. Car daytime running lights, also known as daytime running lamps (Daytime Running Lamps), are gradually and widely used due to a car light standard enforced by the European Union. According to the effect of the lights, it can reduce 12.4% of vehicle accidents and 26.4% of the probability of death in car accidents. The biggest effect of daytime running lights is not to be beautiful, but to provide the vehicle to be seen; in many countries, car daytime running lights are considered an important advancement in road safety. [0003] Daytime running lights are different from ordinary low beam light...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the lack of an online detection system for the quality of LED light guide light distribution in my country and the importance of the system, and proposes an online detection system and method for the quality of LED light guide light distribution of automobile daytime running lights. Effective, fast, accurate and reliable testing of the light distribution quality of the light guide in time after the production of the light guide is off-line

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